Can I use Zuguang Powder if my foot has broken skin?

Generally, foot powder should not be used when the skin on the feet is broken. The irritant ingredients in foot powder may worsen skin damage and could cause pain or infection. Detailed explanations are as follows:

Foot powder primarily contains salicylic acid, benzoic acid, and sophora flavescens, among other components. These substances have certain corrosive and irritating properties, and their main function is to inhibit or kill fungi. It is commonly used to treat athlete's foot caused by fungal infections. However, once the skin is broken, the skin's protective barrier is already compromised. Applying foot powder at this stage allows its irritating components to directly contact the exposed dermal layer, potentially causing severe pain, worsening skin erosion and redness, and even expanding the area of damage.

In addition, the causes of broken skin on the feet vary—it may result from friction, trauma, or fungal infection-induced erosion. If foot powder is used without identifying the underlying cause, even in cases where a fungal infection exists, excessive drug penetration due to broken skin may increase the risk of adverse reactions. If the skin breakage is simply due to ordinary injury, using foot powder is entirely inappropriate and may interfere with normal wound healing, possibly creating conditions favorable for bacterial infection.

Therefore, when the skin on the feet is broken, use of foot powder should be stopped immediately. Priority should be given to cleaning the wound with saline solution or iodophor and keeping it dry. If a fungal infection is suspected, application of foot powder should only resume after the wound has completely healed and under medical guidance. If signs of infection such as redness, swelling, or discharge appear, prompt medical attention is necessary.